<?php // Original from http://www.daniweb.com/code/snippet43.html require_once "config.php"; require_once "classes/db.php"; require_once "autoload.php"; require_once "errorhandler.php"; require_once "lib/accept-to-gettext.php"; require_once "lib/gettext/gettext.inc"; require_once "version.php"; $session_expire = min(2147483647 - time() - 1, max(SESSION_COOKIE_LIFETIME, 86400)); $session_name = (!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME; if (is_server_https()) { ini_set("session.cookie_secure", true); } ini_set("session.gc_probability", 75); ini_set("session.name", $session_name); ini_set("session.use_only_cookies", true); ini_set("session.gc_maxlifetime", $session_expire); ini_set("session.cookie_lifetime", min(0, SESSION_COOKIE_LIFETIME)); function session_get_schema_version() { global $schema_version; if (!$schema_version) { $row = Db::pdo()->query("SELECT schema_version FROM ttrss_version")->fetch(); $version = $row["schema_version"]; $schema_version = $version; return $version; } else { return $schema_version; } } function validate_session() { if (SINGLE_USER_MODE) return true; if (isset($_SESSION["ref_schema_version"]) && $_SESSION["ref_schema_version"] != session_get_schema_version()) { $_SESSION["login_error_msg"] = __("Session failed to validate (schema version changed)"); return false; } $pdo = Db::pdo(); if ($_SESSION["uid"]) { if ($_SESSION["user_agent"] != sha1($_SERVER['HTTP_USER_AGENT'])) { $_SESSION["login_error_msg"] = __("Session failed to validate (UA changed)."); return false; } $sth = $pdo->prepare("SELECT pwd_hash FROM ttrss_users WHERE id = ?"); $sth->execute([$_SESSION['uid']]); // user not found if ($row = $sth->fetch()) { $pwd_hash = $row["pwd_hash"]; if ($pwd_hash != $_SESSION["pwd_hash"]) { $_SESSION["login_error_msg"] = __("Session failed to validate (password changed)"); return false; } } else { $_SESSION["login_error_msg"] = __("Session failed to validate (user not found)"); return false; } } return true; } /** * @SuppressWarnings(PHPMD.UnusedFormalParameter) */ function ttrss_open ($s, $n) { return true; } function ttrss_read ($id){ global $session_expire; $sth = Db::pdo()->prepare("SELECT data FROM ttrss_sessions WHERE id=?"); $sth->execute([$id]); if ($row = $sth->fetch()) { return base64_decode($row["data"]); } else { $expire = time() + $session_expire; $sth = Db::pdo()->prepare("INSERT INTO ttrss_sessions (id, data, expire) VALUES (?, '', ?)"); $sth->execute([$id, $expire]); return ""; } } function ttrss_write ($id, $data) { global $session_expire; $data = base64_encode($data); $expire = time() + $session_expire; $sth = Db::pdo()->prepare("SELECT id FROM ttrss_sessions WHERE id=?"); $sth->execute([$id]); if ($row = $sth->fetch()) { $sth = Db::pdo()->prepare("UPDATE ttrss_sessions SET data=?, expire=? WHERE id=?"); $sth->execute([$data, $expire, $id]); } else { $sth = Db::pdo()->prepare("INSERT INTO ttrss_sessions (id, data, expire) VALUES (?, ?, ?)"); $sth->execute([$id, $data, $expire]); } return true; } function ttrss_close () { return true; } function ttrss_destroy($id) { $sth = Db::pdo()->prepare("DELETE FROM ttrss_sessions WHERE id = ?"); $sth->execute([$id]); return true; } /** * @SuppressWarnings(PHPMD.UnusedFormalParameter) */ function ttrss_gc ($expire) { Db::pdo()->query("DELETE FROM ttrss_sessions WHERE expire < " . time()); return true; } if (!SINGLE_USER_MODE /* && DB_TYPE == "pgsql" */) { session_set_save_handler("ttrss_open", "ttrss_close", "ttrss_read", "ttrss_write", "ttrss_destroy", "ttrss_gc"); register_shutdown_function('session_write_close'); } if (!defined('NO_SESSION_AUTOSTART')) { if (isset($_COOKIE[session_name()])) { @session_start(); } }